Enigma in linea «On the rails»

And who put it there and why?

I guess that put the photographer to photograph.

@radost, please explain what it means "someone's love put on the rails"?

A bouquet of flowers is a manifestation of love.

And, well, Yes. I just think someone is alluding to some kind of mourning, I may be wrong of course, but don't want to think about the bad. Such a beautiful bouquet with white ribbon, but nobody wants to explain why unpleasant scene

unpleasant nothing
here it is possible to assume romance - switchman will go in the morning, transfer direction, and a bouquet of flowers waiting for
and that someone decided to decorate the deserted road,
for me personally, this photographer decided: "Oh, on a gray background a bright bouquet the contrast will look"
and someone that the train will go and crush the bouquet.
who what